Presto 02937 Dorothy™ Electric Rapid Cold Brewer
- Coffee Machine
- 9 watts
- Corded electric
- Cold Brew Coffee Maker
- More reviewed than 76%
Good for same day cold brew when you don't want to wait overnight, though a few reviewers still preferred the smoothness of a traditional 12 hour steep.
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How it ranks among the 87 coffee machines we track
4.1★ across 3,200 Amazon ratings, Bayesian-smoothed toward the category average.
3,200 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
2,937+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 87 coffee machines we track - how the scorecard works · full coffee machines data report. Confidence: medium - useful but incomplete evidence.Last refreshed Jun 15, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
An electric cold brew maker that spins coffee grounds through water to produce cold brew in about 15 to 30 minutes, instead of the usual 12 to 24 hour steep.
The glass carafe and grounds basket sit on a base that spins water in a cyclonic motion, pulling flavor out of the grounds without exposing them to heat. Opinions on the resulting cup are mixed: most reviewers found it good and fast, while a few said a traditional overnight steep still tastes smoother.
- Cold brew in about 15 to 30 minutes vs 12 to 24 hour traditional steep
- Cyclonic spin extracts flavor without exposing grounds to heat
- Glass carafe with magnetic coffee basket
- Adjustable brew speed and spin time for strength
Who it's for
Fits coffee drinkers who want cold brew the same day rather than waiting overnight, including those running more than one unit for extra batches. Traditionalists who prize the smoothness of a slow overnight steep may prefer that method instead.
What buyers say
From Amazon customer reviews.
Fans liked the speed, the lack of bitterness compared to hot brewing, and the magnetic basket; several bought a second unit to brew double batches. Critics called it gimmicky, said a traditional overnight steep with a cheaper cold brew maker gave smoother results, found cleanup with wet grounds messy, and one reviewer's carafe glass broke and a motor eventually shorted out after years of use.
Strengths and trade-offs
Drawn from this product's published specifications.
- Cold brew ready in about 15 to 30 minutes
- No high heat exposure, so less bitter
- Magnetic coffee basket simplifies grounds handling
- Run two units at once for double batches
- Glass carafe reported thin and prone to breaking
- Grounds cleanup can be messy
- A few found flavor less smooth than overnight steep
Performance notes
A cyclonic spin action pulls water through the grounds via a magnetic coffee basket; letting it run longer than the base 15 minutes, up to around 30, produces a stronger cup for reviewers who prefer more intensity. Because grounds are never exposed to high heat, the flavor comes out without the bitterness of hot brewing.
Specifications
| Brand | Presto |
|---|---|
| Model | 02937 |
| Dimensions & fit | |
| Item Weight | 1.5 pounds |
| Item Dimensions D x W x H | 5.5 × 6.5 × 10.5 inches |
| Power & efficiency | |
| Wattage | 9 watts |
| Power Source | Corded electric |
| Voltage | 110 volts |
| Construction & materials | |
| Material | Glass |
| Color | Clear, Black |
| Compatibility & installation | |
| Human Interface Input | Dial |
| Included components | |
| Unit Count | 1 |
| Included Components | Base, Carafe, Cord, Filter |
| Warranty & support | |
| Warranty Description | 1 year |
| Other details | |
| Coffee Maker Type | Cold Brew Coffee Maker |
| Coffee Input Type | ground |
| Filter Type | No filter |
| Number of Items | 1 |
| Is the item dishwasher safe | Yes |
| Style | Cold Brewer |
| Part Number | 02937 |
| Specific Uses For Product | Cold Brew |
| Item Type Name | Cold Brew Coffee |
| Recommended Uses For Product | Cold Brewing |
| Operation Mode | Fully Automatic |
| Other Special Features of the Product | Rapid Cold Brew Technology |
How it compares
This product against the closest alternatives we track in coffee machines.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Presto 02937 Dorothy™ Electric Rapid Cold BrewerThis product | 4.1 / 5 | 3,200 | 4.3 / 5 |
| Keurig K-Cafe Special Edition Single Serve K-Cup Pod CoffeeKeurig | 4.7 / 5 | 8,700 | 4.7 / 5 |
| BUNN 52700 CSB2G Speed Brew Elite Coffee Maker GrayBunn | 4.6 / 5 | 4,000 | 4.6 / 5 |
| Elite Gourmet EHC-5055 Automatic 5-Cup Brew & Drip Coffee Maker with Pause N Serve…Elite Gourmet | 4.3 / 5 | 8,000 | 4.5 / 5 |
| Hamilton Beach One Press Programmable Dispensing Drip Coffee Maker with 12 Cup Internal…Hamilton Beach | 4.2 / 5 | 19,900 | 4.4 / 5 |
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Questions about the Presto 02937
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
How long does the Presto Dorothy take to make cold brew?
Roughly 15 minutes for a standard batch, though several reviewers let it spin closer to 20 to 30 minutes for a stronger cup.
Is the Dorothy's cold brew as smooth as a traditional overnight steep?
Reviews are mixed. Most reviewers found it good and convenient, but a few felt a 12 hour steep produced a smoother, less bitter cup.
Is the glass carafe durable?
One long-term reviewer noted the glass is fairly thin and broke a carafe after continued use, so it should be handled carefully.