Espresso Shot Glass with Measurement Scale 100ml - Volcano Stainless Steel
Volcano Espresso Shot Glass 100ml – Stainless Steel Under $6 with Measurement Scale
You don't need expensive equipment to start measuring your espresso properly. The Volcano Espresso Shot Glass is a 100ml stainless steel measuring cup with a built-in etched scale — under $6, built to last, and designed around the exact workflow of pulling and measuring espresso shots at home. If you're dialing in your grinder or tracking extraction ratios, this is the tool that closes the measurement loop without adding cost or complexity to your setup.
Why Measure Espresso Output?
Most home baristas measure dose (grams in) and time (seconds). Fewer measure yield (ml or grams out) — and that's often where the missing consistency lives. Espresso recipes are defined by a ratio: dose in versus yield out. A common starting point is 1:2 (18g in → 36ml out). Without measuring yield, you're only controlling two of the three variables that determine extraction quality.
The Volcano Shot Glass makes yield measurement instant and visual — catch the shot, read the line, note the number. No additional equipment, no extra step on the scale. One object does the job.
Key Features
Etched Measurement Scale
The measurement markings are etched directly into the stainless steel — not printed, not stickered on. They will not fade, peel, or become illegible after washing. The scale reads clearly under any kitchen lighting, allowing you to track single shots (20–30ml), standard doubles (36–40ml), and lungos (60–80ml) with the same glass.
100ml Capacity
The 100ml volume accommodates the full range of espresso output formats: ristretto (15–20ml), single (25–35ml), double (36–55ml), and lungo (60–90ml). There's enough headroom to catch a lungo without overflow while still being compact enough to fit under low-clearance portafilter spouts.
Volcano Profile — Stable Base, Tapered Neck
The Volcano design is functional, not decorative. The wide base lowers the center of gravity, preventing tip-over when placed under the portafilter spout during extraction. The tapered neck above the base creates a natural pour channel, directing the espresso stream cleanly when transferring to a cup. The form is optimized for the espresso workflow: stable during pull, clean during pour.
304 Food-Grade Stainless Steel
Food-grade 304 stainless steel doesn't absorb flavor compounds, doesn't stain from coffee oils, and doesn't corrode from regular washing. The interior is smooth and seamless — rinse under running water and the glass is clean. No residue, no off-flavor carry-over between shots.
Under $6 — No-Compromise Entry Point
Precision espresso accessories don't have to be expensive. The Volcano Shot Glass delivers the core function — accurate yield measurement — at a price that makes it the obvious first tool for anyone starting to dial in espresso seriously. Add it to any order and it changes how you approach every shot.
Espresso Ratio Reference Guide
| Style | Dose In | Target Yield | Extraction Time | Flavor Profile |
|---|---|---|---|---|
| Ristretto | 18g | 18–25ml (1:1–1:1.4) | 18–22s | Concentrated, sweet, low bitterness |
| Standard Espresso | 18g | 36ml (1:2) | 25–30s | Balanced, full body, moderate bitterness |
| Lungo | 18g | 54–72ml (1:3–1:4) | 35–50s | Lower intensity, more bitter notes |
Using the Volcano Shot Glass in Your Workflow
- Dose your ground coffee into the portafilter (e.g., 18g)
- Distribute with a WDT tool, tamp with consistent pressure
- Place the Volcano glass directly under the portafilter spout — the stable base won't shift
- Start extraction and timer simultaneously
- Stop at your target yield — read the measurement scale on the glass
- Log both numbers: yield (ml) and time (seconds)
- Adjust accordingly: under-yielded → grind coarser; over-yielded → grind finer
- Pour or drink directly from the glass — it's ready to use as a drinking vessel too
Volcano Shot Glass vs Weighing on a Scale — Which Is Faster?
| Method | Speed | Accuracy | Equipment Needed | Best For |
|---|---|---|---|---|
| Volcano Shot Glass (ml) | ✅ Instant read | ±2ml (sufficient for ratios) | Just the glass | Quick ratio checks, daily workflow |
| Scale (grams) | Slower (wait for stable reading) | ✅ ±0.1g | Espresso scale + cup | Precision recipe development |
For dialing in a new coffee or recipe, a scale gives higher precision. For daily workflow once you know your recipe, the shot glass gives you instant visual feedback without additional setup. Many baristas use both: scale during dial-in, shot glass for daily monitoring.
Compatible With All Espresso Machines
The 100ml Volcano glass fits under any portafilter spout with standard drip tray clearance. Compatible with: Breville Barista Express, Breville Barista Pro, DeLonghi Dedica, DeLonghi Dinamica, Rancilio Silvia, Gaggia Classic Pro, ECM Classika, and all commercial single/double group machines with accessible spout clearance.
Cleaning & Care
- After each use: rinse with cold water immediately to prevent coffee oil buildup
- Weekly: wash with dish soap and a soft brush to clean the interior base
- Dishwasher: safe — 304 stainless steel handles dishwasher temperatures and detergents without damage to the etched scale markings
- Avoid: steel wool or abrasive scrubbers on the exterior to maintain the finish
Frequently Asked Questions
Is 100ml enough for a double espresso?
Yes. A double espresso at 1:2 ratio from an 18g dose yields approximately 36ml — well within the 100ml capacity. Even at a generous 1:4 lungo ratio (72ml), there's headroom. The 100ml size is specifically calibrated for espresso output ranges.
Can I use this glass for drinking espresso directly?
Absolutely. The 100ml stainless steel cup is a perfectly functional drinking vessel. The metal walls provide slight insulation to keep the shot warmer than a thin porcelain cup during consumption.
How accurate are the ml markings?
The etched markings are accurate to ±2ml — sufficient for espresso ratio monitoring where you're tracking whether you hit 35ml vs 38ml, not whether you hit 36.2ml vs 36.8ml. For recipe development requiring sub-gram precision, use a digital espresso scale alongside the glass.
Does the glass work with a single portafilter spout and a double spout?
Yes for single (one stream). For double spouts, you would need two glasses (one per spout) or a larger vessel. The Volcano glass is sized for catching one stream at a time.
What's in the Box
- Volcano Espresso Shot Glass 100ml × 1 (stainless steel, with etched measurement scale)dd
Start measuring your espresso output today — under $6, no excuses. Explore our full range of espresso precision tools at COFFEECONCEPT.