Brew Log: Hard Cider

11/2/2025 Press 300 lbs apples of mixed variety into 17.2 gallons of juice Gala Golden Supreme Jonathan Pasteurize to 60C 11/3/2025 Measure 1.073 SG at 69F Measure 3.34 g/L of malic acid Titrate using wine kit with 0.1 normalcy 3ml sample 4 drops phenolphthalein indicator 1.5ml NaOH 0.25 kit multiplier 0.89 tartaric to malic converstion multiplier 1.5ml * 0.25 = 0.375 percent tartaric 3.75 g/L = 0.375 * 10 3.34 g/L malic = 3.75 * 0.89 ...

2025-11-25 · zach

Brew Log: Lemon Hard Seltzer

9/20/2025 Sanitize everything Boil 2.5 gallons filtered water Dissolve 4 lbs corn sugar Raise water to 5 gallons Cool to 78F Measure 1.057 SG Pitch Lalvin EC-118 and nutrient 9/28/2025 Finished Re-fill airlock Wait. 10/6/2025 Mix 5/8 cup cane sugar with 2 cups water and boil Add ~2 tbsp lemon salt and 1/2 tiny vile lime oil Prime keg and drain fermenter Bottle several Force carbonate to 30 PSI Wait. 10/9/2025 Reduce pressure to 15 PSI Pour. Splash. Drink. Delicious. Reduce pressure to 12 PSI

2025-10-25 · zach

Graphing with Environment Sensors

A few years ago, I started dabbling with the ESP chips that have become so popular. For me, the ease of WiFi, and the Arduino compatibility meant that I was able to get up and running much faster. Not having a background in electrical engineering, the simple things like having a good base with the PCB, a couple sensors built-in and easy expansion makes all the difference. Before the ESP chips, I’d tried several other wireless communication chips that were each challenging in their own way. Since my ultimate goal is to report the sensor data to a monitoring service, getting up the stack so that I could use IP communication was a big win, and the ESP chips are perfect for this. ...

2019-09-19 · zach