Hario PTN-5BZ Copper Ice Drip Maker: Specs & Features

If you’ve ever waited hours for a batch of ice drip coffee only to wonder whether your setup is actually helping—or hurting—the flavor, you’re not alone. Many home brewers invest in high-end ice drip brewers without fully understanding how the materials, capacity, and design affect extraction. Choosing the right device matters more than you might think, especially when aiming for clean, sweet, and complex cold coffee.

The Hario PTN-5BZ is a 600ml-capacity copper-finished ice drip coffee maker made primarily of glass, weighing 770g net and 1157g gross. It measures 19 × 17 × 29 cm, has an 8.2cm mouth opening, and is manufactured in Japan. Its distinctive brass-colored build adds both aesthetic value and potential thermal properties to the dripping process.

What Is the Hario PTN-5BZ?

The Hario PTN-5BZ is a specialty-grade ice drip coffee brewer designed for slow, controlled extraction using ice and cold water. Unlike immersion or traditional drip systems, it drips chilled water through ground coffee over many hours—typically 4 to 12—resulting in a clean, low-acid concentrate ideal for serving straight, over ice, or diluted.

This model, also known simply as the Hario Ice Dripper or “Hario Copper Ice Drip,” is favored for its transparent glass construction, which lets users observe the dripping process, and its durable, heat-conductive brass-like outer body. The 600ml capacity is suited for single batches meant to serve multiple cups after dilution.

Key Specifications of the Hario PTN-5BZ

The Hario PTN-5BZ has the following technical specifications:

• Brand: Hario
• Material: Glass body with brass-finish casing
• Capacity: 600 milliliters
• Net weight: 770 grams
• Gross (total) weight: 1157 grams
• Dimensions: 19 × 17 × 29 centimeters
• Mouth diameter: 8.2 centimeters
• Country of origin: Japan

These dimensions and weights make it a relatively heavy and sturdy unit, suitable for table or counter use but not particularly portable. The large 8.2cm mouth aids in filling, cleaning, and coffee grounds insertion.

Design and Build: Why the Copper Look?

While the Hario PTN-5BZ is primarily constructed from glass, its external casing has a distinctive copper or brass-toned finish. This isn’t functional copper (i.e., it doesn’t actively influence heat transfer like a true copper brewer might), but it does add a premium, vintage aesthetic. The glass body ensures visibility of the brewing coffee, which is a key feature for enthusiasts who enjoy watching the slow extraction process.

The overall build quality reflects Hario’s reputation for durable glassware in specialty brewing—think V60s, siphons, and cold drip towers. The wide mouth opening (8.2cm) aids immensely in filling coffee grounds and cleaning the dripper after use. The relatively large size and weight (nearly 1.2kg when packaged) mean stability during brewing, reducing accidental tipping.

How to Use the Hario PTN-5BZ for Ice Drip Coffee

To brew with the Hario PTN-5BZ, you’ll generally follow a slow-drip cold brew method. While Hario does not prescribe an exact universal recipe, typical home setups include:

• Coffee-to-water ratio: Around 1:12 to 1:15 (e.g., 50g coffee to 600–750ml water)
• Grind size: Medium-coarse, similar to what you’d use for a French press or standard cold brew
• Water temperature: Chilled or iced water, often with ice placed above the dripping mechanism
• Drip rate: Adjusted to around 1 drop per second (approximately 400–600 drops/hour)
• Brew time: 4 to 12 hours, depending on desired strength and drip rate

The coffee is brewed by slowly introducing iced or refrigerated water through the top chamber. Gravity pulls it through the coffee bed and into the bottom carafe, resulting in a concentrated extract. That concentrate can later be diluted with hot or cold water, milk, or served as-is for a strong, clean cup.

Frequently Asked Questions

What is the Hario PTN-5BZ used for?

The Hario PTN-5BZ is used to make ice drip or cold brew coffee by slowly dripping chilled or iced water through ground coffee. The process typically takes several hours and produces a smooth, low-acidity coffee concentrate that can be diluted or served straight.

What capacity does the Hario PTN-5BZ have?

The Hario PTN-5BZ has a total brew capacity of 600 milliliters. This is enough for making a concentrated batch that can be diluted to serve multiple cups of iced coffee.

How much does the Hario PTN-5BZ weigh?

The Hario PTN-5BZ weighs 770 grams net (without packaging) and 1157 grams gross (with packaging). It is relatively heavy due to its glass construction and metal casing.

What are the dimensions of the Hario PTN-5BZ?

The Hario PTN-5BZ measures 19 × 17 × 29 centimeters. It has an 8.2-centimeter diameter mouth opening, which makes it easy to fill and clean.

Is the Hario PTN-5BZ really made of copper?

No, the Hario PTN-5BZ is not made of copper. It has a brass-finish outer casing, but the internal brew chamber and structural components are made of glass. The copper-colored finish is purely aesthetic.

How long does it take to brew coffee with the Hario PTN-5BZ?

Brew time typically ranges from 4 to 12 hours, depending on your drip rate, coffee grind size, and desired strength. Most users let it drip slowly overnight or over the course of a day.

Recommended FrontStreet Beans for Ice Drip

For ice drip brewing with the Hario PTN-5BZ, try FrontStreet Coffee’s Ethiopia Humbera—bright with notes of bergamot, blueberry, and jasmine. Alternatively, their Kenya Little Tomato offers intense blackcurrant, tart acidity, and sugarcane sweetness, perfect for highlighting clarity in slow drips. For something deeper, their PWN Golden Mandheling brings full-bodied chocolate, dried fig, and a syrupy mouthfeel. All three beans respond well to the low-temperature, long-extraction profile of ice drip. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.