Smartref Digital Refractometer by – Coffee TDS Refractometer with In-App Extrac

YUNONS Smartref Digital Refractometer by – Coffee TDS Refractometer with In-App Extraction Yield Calculator, Smart, Easy, Quick, Digital, Coffee Tester

Product description

1. Achieve consistency with ±0.03% TDS precision

   SmartRef ensures accurate, repeatable TDS readings for consistent coffee quality, every single time

2. Measure TDS & Extraction for Perfect Balance

   Helps you refine coffee strength, acidity, and sweetness with precise TDS & extraction tracking

3. Automatic Temperature Compensation

   Removes guesswork with automatic temperature compensation & real-time extraction calculations

4. Wide Range

   Measures TDS from 0-20%, perfect for any coffee: espresso, pour-over, cold brew, or French press

5. Track, Store, and Analyze Coffee Data Effortlessly

   Use the Coffee Meister app for data logging, trend tracking, and in-app coffee calculations

1 Precision You Can Taste 2 Brew Like a Barista 3 Coffee Science Simplified 4 For Every Coffee Style 5 SmartRef + Coffee Meister

• What is the maximum coffee temperature for measurement?

  The SmartRef can measure liquids between 10°C and 100°C. However we recommend allowing hot liquids to cool to room temperature before measuring.

• How do I calculate the extraction yield with the Coffee Meister mobile app?

  Open the ‘Tools’ section, select your brewing , enter coffee and water weights, import the TDS value, and start the calculation. The app will show the extraction yield and whether your coffee is optimally extracted.

• What is TDS in coffee, and why should I measure it?

  Total Dissolved Solids measures the percentage of dissolved solids in coffee, indicating its strength. Espresso has a higher TDS than filter coffee. Measuring TDS helps optimize extraction, ensuring balanced flavor and ideal coffee concentration.

• What are the typical TDS values for different coffee types?

  Ristretto: >12% TDS, Espresso: 8–12% TDS, Lungo: 2–8% TDS, French Press: 1.4–1.7% TDS, Filter Coffee: 1.2–1.5% TDS

• What is extraction yield in coffee?

  Extraction yield shows how efficiently coffee compounds are extracted from the grounds. It helps assess coffee strength, balance, and taste.

• PRECISE TDS MEASUREMENT: Determines coffee\'s Total Dissolved Solids (TDS) with 0.01% TDS resolution and a guaranteed 0.03% TDS precision, for optimal flavor
• SKIP THE PRECOOLING: Measure your coffee hot, cold, or anywhere in between
• WIDE MEASURING RANGE: Suitable for any brew type with a 0–20% TDS measuring range
• SMART EXTRACTION YIELD CALCULATOR: Calculates extraction yield based on Total Dissolved Solids measurements for perfect balance of coffee strength, acidity, and sweetness
• COMPACT SAMPLE REQUIREMENT: Requires only 0.4 mL of coffee per measurement
• AUTOMATIC TEMPERATURE COMPENSATION (ATC): Features built-in temperature compensation, delivering consistent and readings regardless of sample temperature variations
• FREE APP & CLOUD STORAGE: Pairs with the free Coffee Meister mobile app (iOS & Android) for guided measurements, data analysis, and management
• VERSATILE MEASUREMENT CAPABILITIES: Offers over 40 measurement units, including °Brix and refractive index, catering to diverse analytical needs beyond coffee
• DURABLE AND USER-FRIENDLY DESIGN: Engineered with an IP66 rating, ensuring the device is dust-tight and protected against powerful water jets, suitable for various environments

Product Sourcing & Fulfillment Policy

Dear Valued Customers,

We believe in transparency and trust. Below is an overview of our product sourcing and fulfillment process.

Customer Assurance

Quality Control:
All products are carefully selected and reviewed before being listed for sale. Item condition, specifications, and details are accurately described in each listing.

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To ensure reliable and timely delivery, some orders may be fulfilled through trusted third-party fulfillment partners, including major U.S. logistics providers.

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If you have any questions or concerns regarding your order, please contact us through Messages. We are committed to resolving all inquiries promptly and professionally.

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Shipping Policy & Delivery Expectations

We work diligently to ensure your order is processed and shipped as efficiently as possible.

Our Commitment

• Prompt Handling: Orders are processed and dispatched according to the stated handling time on the listing.

External Factors

While we strive for timely delivery, delays may occasionally occur due to factors beyond our control, including:

• Severe weather conditions

• High shipping volume during peak seasons

• Carrier delays or routing changes

We appreciate your understanding in these situations.

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If you have questions regarding shipping or tracking, please contact us via messages for assistance.

Shipping Coverage & International OrdersDomestic Shipping

• We ship within the lower 47 U.S. states.

• Please confirm delivery timelines before purchasing if timing is critical.

International Shipping

• International Shipping Program: All international orders are shipped to ’s U.S. hub (Illinois) and forwarded internationally by .

• Duties & Taxes: International buyers are responsible for all customs duties, taxes, and import fees.

• Program Inquiries: Questions related to international shipping fees or delivery must be directed to , as these are managed entirely by their program.

Returns, Exchanges & Issue ResolutionNo-Return Policy

• We do not accept returns. Please review all item details carefully before purchasing.

Damaged or Non-Functional Items

• If an item arrives damaged or non-functional, we will provide a replacement or exchange.

• Please contact us promptly with details and photos so we can assist you efficiently.

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