Fristaden Lab Blog

How Much Does a Centrifuge Cost? (2026 Price Guide)

Centrifuge prices in 2026 range from a few hundred dollars for a mini centrifuge to six figures for an ultracentrifuge. Here are published price examples by type, what drives the cost, and how to c...

How to Set Up Vacuum Filtration (Büchner Funnel & Flask)

Step-by-step vacuum filtration setup with a Büchner funnel or fritted glass apparatus: parts, assembly, filter choice, safety and the mistakes that ruin a filtration.

How to Calibrate a pH Meter (2- and 3-Point Calibration)

Step-by-step 2- and 3-point pH meter calibration: which buffers to use, how often to calibrate, and how to fix drifting or failed readings.

How to Use a Separatory Funnel: Liquid-Liquid Extraction Step by Step

A separatory funnel separates two liquids that don't mix, usually a water-based layer and an organic solvent layer, so you can isolate a compound that prefers one of them. It's a core technique in ...

A Beginner's Guide to the Fristaden Lab Catalog: What Each Piece of Equipment Does

Walking into the world of lab equipment can feel overwhelming. Every instrument has its own name, its own specs and its own jargon. But underneath, most lab tools do one simple job well. This guide...

Overhead Stirrer Viscosity: Why It Matters for Cosmetic Formulators

You can have a flawless formula, a precise balance and a calibrated pH meter, and still end up with a lotion that separates in three weeks or a cream full of tiny air bubbles. Very often the culpri...

Choosing a Lab Balance: Units, Readability, Accuracy and Settling Time Explained

New to lab balances? Learn what readability, accuracy, units and stabilization time mean, and how to pick the right Fristaden Lab balance for your work. Open any balance spec sheet and you'll see a...

Cosmetic Formulation: The Hobby That's Taking Over Kitchen Counters

Cosmetic formulation — making your own skincare and beauty products from raw ingredients rather than buying them off a shelf — has quietly become one of the fastest-growing DIY hobbies out there. P...

Understanding Calibration Certificates for Your Fristaden Lab Balance

If you've ever added a calibration certificate to your cart alongside a new balance and wondered whether it's worth the extra line item, you're not alone. For hobbyists, small-batch formulators, an...

The Right Gear for What You're Actually Making

Precision equipment isn't one-size-fits-all. A kombucha brewer and a resin artist both need a scale, but they need it for completely different reasons, paired with different tools. Instead of guess...