We obviously didn’t harvest all our potatoes last year, because potato plants started sprouting in the garden in February. Carol wanted to plant pole bean seedlings in that part of the garden, so she dug up the potatoes and got three or four pounds of lovely little Yukon Gold potatoes. We made coconut milk curry.
Category: Bay area, Calif.
Pot-in-Pot Preservation Cooling System
This system, developed by Mohamed Bah Abba of Nigeria, cools food by evaporation, using no electricity. The Arabic term for this device is transliterated as “zeer,” so it is sometimes called a “zeer pot.”
How it works: The Pot-in-Pot Preservation Cooling System consists of two nested porous clay pots, with fine sand in between them, and a cloth covering the opening. You pour water into the sand, until it soaks through the outer pot. You also soak the cloth in water. As the water evaporates from the outer pot and the cloth, it cools the inside. The sand and pots act as both water reservoir, and thermal mass (so the pot stays cool when you open the lid). The moist interior is especially good for cooling fresh produce (which is what it was originally designed to do).
How cool it can get (theoretically): The inside temperature of the Pot-in-Pot Preservation Cooling System depends on outside air temperature, humidity, air flow around the pot, and whether the pot stands in the sun. Under ideal conditions, the inside temperature should get close to what meteorologists call “wet-bulb temperature.” Some users report temperatures as low as 40° F. I will track the temperature inside this pot over time.
How I made one:
Materials:
1 – 12″ dia. terracotta pot
1 – 14″ dia. terra cotta pot
6 – small pottery feet
2 – corks to fit the holes in the pots
1 – 12″ dia. pot saucer
1 – old T-shirt
25 lbs. of fine sand
water
Note that dimensions of terracotta pots are variable, so you may have to adjust things to fit what you can get.
Sand the holes in the pots until the corks fit smoothly inside. Cork the holes. Place 3 of the pottery feet in the bottom of the 14″ pot so that the 12″ pot will fit inside without the corks bumping. Then fill the rest of area with sand, leaving room for the cork in the 12″ pot. Now put the 12″ pot inside, and fill the space between the pots with sand with a funnel — I made a funnel from a cut-off seltzer water bottle — to within an inch of the top of the outer pot.
Place the whole assembly on the three remaining pottery feet, so air can circulate on the bottom, which will increase evaporation and cooling slightly.
Pour an inch or two of water into the 12″ pot, wetting in the inside of the pot. Next, slowly pour water into the sand, letting it soak in. The idea is to give the water time to soak into the sand and the terracotta pots. It can take several hours and up to a gallon of water to fully charge it. I found if I rushed this step, the inner pot started floating up; then I had to weight the inner pot with a cinder block to keep it in place until the water soaked in. Some people suggest tying the inner pot down with a strap or rope; others use threaded rod with nuts and washers (expensive and sure to rust). I had a cinder block on hand, and that worked fine.
The pot saucer isn’t entirely necessary, but it helps keep the inside clean, and where we live it helps keep the squirrels out of the food (the cinder block might even keep raccoons out). Pour some water into the saucer, soak the old T-shirt, and cover the pots with the T-shirt, adding even more evaporative surface. It gets pretty windy where we are, so I tied the T-shirt in place.
Total cost: about $55 (if you have to buy sand), with no cost to run it ever. Mohamed Bah Abba sells them for 40¢ ea. in Nigeria, a brilliant example of low-cost yet highly effective technology from the developing world.
More about this invention here.
In the clouds
We decided to go for a hike up in the redwoods late this afternoon. As we drove up into the hills, we got closer and closer to the clouds, until finally we were in them. The trail started close to two thousand feet above sea level, then wound down the coast side of the hills. The clouds were blowing in from the ocean against the hills, so we were in the clouds all the way down to where we turned around, at about twelve hundred feet elevation. In fact, the clouds (or was if fog?) got thicker the lower we got.
It continues to amaze me that we can start driving from downtown San Mateo, in the city a mile from the bay at maybe twenty feet about sea level, and in twenty minutes we can be hiking in the mountains among Douglass fir and redwoods two thousand feet above sea level. This is one of the benefits of living in a seismically active region: mountains right next to the ocean.
San Mateo happiness wall
At the corner of Third Ave. and El Camino Real.
Experiment in hugelkultur
Carol has decided to experiment with hugelkultur in the garden this year. A hugelkultur garden bed consists of decaying wood and other compostable material from plants. This technique is supposed to create more fertility in the soil, and improve water retention. Given the ongoing drought here in northern California, improved water retention alone makes this technique worth trying.
Rather than build up a mound of decaying material, as is typical with hugelkultur, Carol got me to make a raised garden bed; with the tiny amount of space we have for our garden, this seemed to make the most sense. We got some cheap boards from a lumberyard, I scrounged some scrap wood for the corners, and in about an hour we put together a bed 96 inches long and 25 inches wide. Then we put in some partially finished compost, along with twigs and small branches.
In the photo above, we’ve put down a layer of partially finished compost; the two buckets behind the raised garden bed are more compost waiting to go in. Carol has started laying some twigs and branches on the compost. After this, she put down another layer of compost, and then added a layer of potting soil we purchased from the hardware store across the street.
Carol is also planning to set up a greywater system (she is something of an expert on the topic). We already collect greywater — we have to run about two and a half gallons of water before the water in the shower gets hot, so we collect this and use it for watering the garden. Given how bad the drought is, that wasn’t enough water, so she is looking at other easily accessible sources of greywater that we can use without annoying our very nice landlord.
If you look closely at the photo, you’ll see potatoes growing in the raised bed behind the new bed. Today they started wilting a little. The National Weather Service predicts “dry weather and above average temperatures are likely to persist into the first half of next week”; we’re going to have to start watering the garden now, right in the middle of the winter-wet season. This is global climate weirdness happening in front of our eyes; maybe hugelkultur is one small way to help restore some balance to an out-of-balance world.
Above: The bed with more twigs and branches, and more bins of partially finished compost ready to go on top (photo credit: Carol Steinfeld).
Bee nests
In the fall of 2014, the ecojustice class (gr. 6-8) at our congregation made “bee houses” to provide potential nesting sites for Mason Bees. We kept watch on the bee houses through spring of 2015, but neither I nor the teens observed any nesting activity. (Mason Bees are solitary, and do not nest in hives like the more familiar Western Honeybee.)
But when this year’s ecojustice class checked on the bee houses last Sunday, it looked like some of the holes are now or had recently been occupied by insects:
Since Mason Bees use mud and soils to plug up their nesting holes, and these holes do not look like they have mud in them — the color of the plugs is not the color of any of the nearby soils — I’m not convinced that Mason Bees are nesting here. Nevertheless, some organism has definitely moved in to these holes; perhaps further observation will reveal what that organism might be.
Kelp
This is apparently an air bladder of Bull Kelp (Nereocystis luetkeana), but with a much shorter stipe (or stalk) than that usually associated with this species of macroalgae. Carol found this beautiful organism when we were on a walk at Half Moon Bay State Beach late this afternoon (I walked right by it because I was too busy looking at Sanderlings and Mew Gulls).
References:
Peter Alden and Fred Heath, National Audubon Society Field Guide to California, p. 87.
A. L. Baker, An Image-Based Key: Algae (PS Protista), Cyanobacteria, and Other Aquatic Objects, Nereocystis.
Washington State University, Intertidal organisms EZ-ID Guide, Nereocystis luetkeana (Bull Kelp).
Old Time Religion
Recently, I heard some new verses for the parody version of “Old Time Religion.” Here they are:
Yoruba religion, a.k.a. Orisha devotion:
Let us pray to the Orishas,
Not the ones who are too vicious,
Just the ones who grant our wishes;
And that’s good enough for me!
Ancient Egyptian religion:
O we sing the praise of Horus
Like the Dynasties before us —
A three thousand year old chorus;
And that’s good enough for me!
Worshiping at the altar of Wall Street:
The mighty Dollar is my Savior,
She controls my ev’ry behavior
Whether I spend her or I save her;
And that’s good enough for me!
I was particularly interested in these verses because they happened to be about three religions I am currently studying. And lest you think I’m kidding about Wall Street being a religion, you might want to check out Scott Gustafson’s new book At the Altar of Wall Street: The Rituals, Myths, Theologies, Sacraments, and Mission of the Religion Known as the Modern Global Economy (Eerdmans Publishing, Sept., 2015), in which the author “argues that economics functions in our current global culture as religions have functioned in other cultures.”
Monarchs
Ed, whom we met through Sacred Harp singing, is a docent at Natural Bridges State Park, where migrating Monarch butterflies spend several months in the winter. Months ago he had offered to show us the Monarchs, and today we took him up on his offer.
Many of the Monarchs roost near the visitor center, down in a hollow where Blue Gum Eucalyptus trees grow. We walked into the grove at 11:40; the sun was well down into the hollow, and the temperature was rising into the mid-50s F. I looked up, and saw dozens of Monarchs soaring about twenty feet above me. Many more were roosting in the trees, and in the ivy growing up the trees.
Ed pointed out three large clusters of Monarchs, on three nearby Eucalyptus branches. He had a scope, which he focused on one of the clusters of Monarchs. The scope took in about half the cluster, and it was a spectacular sight: I counted well over a hundred butterflies roosting, all closely packed together. They were mostly showing the dull orange of the undersides of their wings, but every once in a while one would spread its wings, making a momentary spot of vivid bright orange.
The park has a collection of dead Monarchs, and using two dead insects Ed showed us the difference in the wing patterns of the male and female Monarchs: males have a distinct black spot on each hindwing; females have heavier black veining on their wings.
Near the visitor’s center, there’s a small butterfly garden, with two different species of milkweed growing. The caterpillars of Monarch butterflies will eat only milkweed. Sure enough, there were two caterpillars feeding on one of the milkweed plants.
It was a pretty fabulous way to spend a morning.
Info about visiting Natural Bridges State Park and the Monarchs here.
Dahwoodi Bohra mosque
Recently, a new mosque opened in Palo Alto, which is affiliated with a specific group of Shia Muslims known as Dahwoodi Bohra. I’ve been looking into Dahwoodi Bohra, and have found that it challenges some of my notions of Islam.
Dahwoodi Bohra is a branch of Isma’ili Islam, along with the better-known Druze; and Isma’ili is a branch of Shi’a Islam. Isma’ilism has Seven Pillars, instead of the more familiar Five Pillars of Islam. The Isma’ili consider the Shahadah — “There is no God but Allah and Muhammad is his prophet” — to be the grounding statement of all Seven Pillars, and therefore not a pillar in itself. The Seven Pillars of the Isma’ili include the familiar Salat (prayer), Zakat (charity), Sawm (fasting), and Hajj (pilgrimage). The three additional pillars are Jihad (struggle), Walayah (guardianship of the faith), and Taharah (purity). Although I usually think of Muslims performing Salat, prayer, five times a day, the Dahwoodi Bohra pray three times a day, since they perform some of the prayers at the same time.
The Dahwoodi Bohra have characteristic clothing which they may wear at religious ceremonies. The men wear a white tunic and coat, with a hat known as a topi (on Youtube, I found instructions on how to properly starch a topi here). Women typically wear head scarves, but rather than the subdued fabric I usually see Muslim women wearing, Dahwoodi Bohra headscarves tend towards the bright and spangly.
In common with other Shi’a Muslims, a major ritual is the Mourning of Muharram, which is observed in the first Islamic month; this observance is generally not performed by Sunnis. And there is much more to learn about the Dahwoodi Bohra: they have their own language; the largest number live in Gujarat, India, and Karachi, Pakistan; the women sometimes perform genital mutilation of girls, yet the men may be unaware of this; etc.
Yet learning even this little bit about the Dahwoodi Bohra has shown me the extent to which I have assumed that Sunni Muslims are normative. I should know better: every religious tradition I have started investigating has proved to be far more diverse than my original assumptions allowed for.
And here are some links to news stories on the local Dahwoodi Bohra mosque: here, here, and here. There’s not much about the congregation on Salatomatic, but for reference, their listing is here. Finally, the “official” Dahwoodi Bohra Youtube channel, which appears to be mostly audio files, is here.