Those large brewers you see at events are commonly called coffee urns or commercial coffee urns. They’re large-capacity coffee makers with a built-in spigot for easy serving. You’ll also see terms like large coffee dispenser, percolator urn, or hot beverage dispenser, especially when the unit can heat water for tea or cocoa.

• Typical capacities range from about 30 cups up to 100+ cups.
• “Cup” on urns often means 5–6 oz, not a full 8 oz.
• Listings usually note features like dripless faucets, keep-warm modes, and detachable cords.

For home use, bigger drip machines (12–14 cups) are popular, while urns suit offices, churches, and events.

Brewing for a crowd is easier with a large urn.

1. Estimate volume: 25 guests x 8 oz ≈ 200 oz (adjust if you pour smaller 5–6 oz servings).
2. Choose capacity: A 30–50 cup urn provides a comfortable buffer.
3. Prep the basket: Add a filter (if required) and use a moderate grind.
4. Add coffee: A common starting point is about 1–1.5 Tbsp per 6 oz of water; adjust to taste and follow the model’s guide.
5. Fill and brew: Add water to the level you need. Brew times vary by unit; check the manual.
6. Serve and hold: Many urns have keep-warm settings. Stir gently before serving to maintain consistency.

Place the urn on a stable, heat-safe surface and keep cords dry.

Capacities vary by model. Many large brewers are labeled 30, 40, 45, 50, or 100 cups, while household drip machines are often 12–14 cups. A dedicated 24-cup option may be less common.

• If you need roughly 24 servings, two 12-cup drip brews can work.
• Alternatively, use a larger urn and fill only to the level you need, as long as it meets the unit’s minimum fill line.
• Remember that “cup” in urns is often 5–6 oz, so a 30-cup urn holds about 150–180 oz (roughly 18–22 eight‑oz pours).

Check each listing’s specifications to confirm actual capacity and serving size assumptions.

A quick way to size up is to estimate total pours, then match capacity.

• Serving size: Decide on 6 oz or 8 oz cups.
• Guest count: Multiply guests by your pour size to get total ounces.
• Capacity match: Urn “cups” are often 5–6 oz. As a rough guide:
  • 30-cup urn ≈ 150–180 oz (about 18–22 eight‑oz pours)
  • 45-cup urn ≈ 225–270 oz (about 28–33 eight‑oz pours)
  • 60–80 cup urns suit larger groups and fewer refills
• Event length: Longer events may benefit from extra capacity for top-offs.
• Practical needs: Check counter space, weight when full, and power requirements.

Review each product’s specs for exact measurements and features.

Regular care helps flavor and performance.

1. Unplug and cool completely. Empty any remaining liquid.
2. Disassemble removable parts (basket, stem, lid). Wash with warm, soapy water; avoid abrasives. Rinse well.
3. Wipe the interior and exterior with a soft cloth. Don’t submerge the base or any electrical components.
4. Descale as needed (often every 1–3 months, depending on water hardness and use) using a manufacturer‑recommended descaler or a diluted white vinegar solution, then rinse thoroughly with fresh water.
5. Dry fully and reassemble before storing.

Rinsing after each use and descaling periodically can help reduce buildup, but timing varies by model and local water conditions. Always follow the unit’s manual.