A double basket is the default 58 mm cup on a Classic. A single is a smaller well for a short drink, not a cleaner espresso. The ranking r/espresso thread is “Should I be using double or single basket for a one cup” — people arguing dose for one drink, not Gaggia lug stamps. HomeBaristaMods’ 58 mm accessory is the non-pressurized family; you still pick single vs double by the cup’s height, not by buying a second PID.
If the handle will not lock after you swap cups, that is portafilter lock, not “the single is wrong.”
The ranking thread is a one-cup argument
Organic #1 is a home machine owner asking which basket to use for a regular one cup. Replies there say a single basket is finicky because of the well shape, and that you should dose the cup you actually installed — not half-fill a double. A Classic single is still 58 mm at the ears. It is not a Dedica 51 mm single.
| 宣称 | 真实 | 出处 | 差在哪 |
|---|---|---|---|
| Single is “more quality” | Single is less coffee in a narrower well; #1 replies call it harder to dial | r/espresso #1 | Taste vs mass |
| Double needs a 58 mm tamper only | Both singles and doubles on a Classic are 58 mm class | 58.5 vs 58 tamper | Diameter vs dose |
| IMS B68 is a single | B68 is a 58 mm code family; pick the dose stamp | Which IMS | SKU |
When a single makes sense
One short drink, or a guest who does not want 36 g out. You still need a grind that can choke that smaller bed. Dual-wall singles hide that; pressurized vs not is step zero.
A bottomless ($59) shows either cup. It does not pick the dose.
When to stay double
Most Classic recipes, milk drinks, and IMS shopping start at the 18 g-class well. Ranking-thread owners who want “one cup” often still pull the double and split or drink it. Ridge vs ridgeless is its own catch. Single vs double is how much coffee you put in.
Frequently Asked Questions
Should you use a single or double basket on a Gaggia Classic?
Use a double unless you specifically want a short, lower-dose drink. The Classic’s 58 mm ears fit both; the well does not.
Is a Gaggia single basket 51 mm?
No. Classic singles stay 58 mm at the portafilter. Dedica is the 51 mm platform.
Do I need a different tamper for a single basket?
Same 58 mm-class tamper. The cup is narrower in depth, not in ear diameter.
Will a single basket fix channeling?
No. Channeling is grind, distribution, and a puck screen vs shower screen conversation — not a smaller well.
Is HomeBaristaMods’ 58 mm basket a single or a double?
Treat the Classic/Baby Pro 58 mm accessory as a commercial cup; confirm the gram stamp on the steel you receive.
Brewing tools: brewing tools.