Single dosing means weighing each portion of whole beans before you grind, instead of keeping beans in the grinder hopper. Single dose storage tubes make this easy: you weigh several doses in one session, cap each tube, and pour one tube into the grinder when it is time to brew. This guide explains how to use them, based on the two tube sets Yozcoffee sells.
What a single dose tube set includes
| Walnut Single Dose Tubes | Dosing Tubes with Black Rack | |
|---|---|---|
| Tubes | 12, lead-free borosilicate glass | 12, clear tubes |
| Capacity per tube | About 20–22 g whole beans | One pre-weighed portion |
| Caps | Threaded wood-grain screw caps | Screw-top caps, black or walnut-tone |
| Holder | Solid walnut base, 2 rows of 6, 2.4 cm deep recesses | Countertop rack, 2 rows of 6, grip pads |
| Opening | 3 cm (1.2 in) | – |
Actual fill depends on bean size and roast, so check how your dose fits the tube before you prepare a full week of portions.
How to pre-weigh a week of doses
- Set a scale to zero with an empty tube or a weighing cup on it. A bean scale bowl or a weighing cup scale reads in 0.1 g steps.
- Weigh your usual dose, for example 18 g for espresso or 15 g for pour-over, and pour it into the tube.
- Close the screw cap and put the tube back in the rack.
- Repeat for as many doses as you plan to brew.
- When it is time to brew, pour one tube straight into your grinder and put the empty tube back in the rack.
Why single dose tubes help
- No weighing at the grinder: each tube is already a measured dose.
- Several coffees at once: keep an espresso roast, a decaf and a light filter roast side by side, and choose one for each brew.
- Visible stock: clear walls show which beans are in each tube and how many doses are left.
Storage tips
- Keep the rack away from direct sunlight and heat sources.
- Label tubes or keep different coffees in separate rows so they stay easy to tell apart.
- For larger amounts of beans, use an airtight canister and fill the tubes from it. See our guide How to Store Coffee Beans.
FAQ
How many grams fit in one tube?
The walnut set lists about 20–22 g of whole beans per tube, enough for a typical espresso or pour-over dose. Actual fill depends on bean size and roast.
Can I use the tubes with a hand grinder?
Yes. The walnut set's 3 cm (1.2 in) opening is designed to pour into a hand grinder or a single-dose hopper.
How many doses does one set hold?
Both sets hold 12 tubes, one dose per tube.