Countertop herb dock that tracks freshness
By Maya Chen
A small bamboo dock for fresh herbs that weighs each bundle and watches humidity, then tells you what to use before it wilts. Groceries stop dying in the crisper drawer because the thing you bought on Sunday nags you on Wednesday.
Topics: kitchen, food-waste, iot, sustainability
The problem
Roughly a third of household food waste is produce, and herbs are the worst offenders — bought for one recipe, dead by the weekend. Nobody opens the crisper drawer until it smells. The waste is invisible until it is compost.
Who it's for
People who cook three or more nights a week and already buy fresh herbs: they feel the guilt every time they scrape cilantro sludge into the bin. Secondary: meal-kit subscribers who accumulate half-used bundles.
How it works
Three weighted wells hold herb bundles in shallow water. Load cells notice when a bundle stops being used; a humidity sensor catches early wilt. The dock's e-ink strip and a companion app say 'use the basil in the next two days' with three recipe prompts.
Open questions
Does freshness nagging actually change behavior, or does it become another ignored notification? Is three wells the right count? Can the humidity signal distinguish wilt from a humid kitchen day?
Form & materials
Bamboo body about the size of a toaster's footprint, three glass wells, one USB-C port. No screens glowing in the kitchen — a single e-ink strip along the front edge and a soft amber LED per well when something needs attention.
Making it
First ten: CNC bamboo blanks, off-the-shelf load cells, ESP32, hand assembly on my bench. First ten thousand: molded PLA-bamboo composite body from a Shenzhen partner, custom PCB replacing the dev board, glass wells from a catalog supplier.
Unit economics
BOM lands near $19 at 5k units (load cells $4.20, ESP32 module $2.80, e-ink strip $5.10, body and glass $7). Target retail $79. The math works if returns stay under 4% and we skip retail margin by selling direct for year one.