Recent Post
Maple Syrup Hydrometer Temperature Correction
A maple syrup hydrometer only reads true at the temperature it was calibrated for. Correct your reading for the syrup’s actual temperature with this calculator and chart, and see what too thin and too thick really mean.
Maple Syrup Finishing Temperature (and Your Altitude)
Maple syrup finishes at about 7.1 degrees F above the boiling point of water at your location, so the target moves with altitude and the weather. A calculator, an altitude table, and why a hydrometer beats a thermometer for the final call.
How Many Taps per Maple Tree? Tree Size and Tap Counts
How many taps a maple tree can carry depends on its diameter at breast height. University of Maine and Utah State Extension guidance, how to measure DBH with a tape and pi, which maples you can tap, and how older guidelines allowed more taps than today’s.
Greenhouse Heater Size Calculator (BTU by Size and Glazing)
BTU per hour is surface area times temperature difference times the glazing’s U-value. Enter your shape, dimensions, glazing and temperatures for a heater size in BTU and kW, using U-values sourced from published greenhouse engineering factsheets.
Seed Viability Chart: How Long Vegetable Seeds Last
Most vegetable seeds stay viable 1 to 5 years when stored cool and dry. A chart of years by crop, the temperature-plus-humidity storage rule, and a step by step germination test for packets you are not sure about.
Compost Ratio Calculator: Greens, Browns and C:N
Pick your greens and browns to see your mix’s carbon to nitrogen ratio against the usual 30:1 target, or solve for how much of one material to add to hit it.