Shardor Coffee Grinder Manual: Setup, Use, and Troubleshooting

Shardor makes affordable electric coffee grinders that sell extremely well on Amazon, but the included manuals are thin and poorly translated. If you just bought a Shardor grinder and can't figure out the grind settings, cleaning process, or why it's not working right, you're not alone. I've owned the Shardor blade grinder and the Shardor conical burr grinder, and I had to figure out most of the useful stuff through trial and error.

This guide covers the full Shardor lineup with practical instructions for daily use, cleaning, maintenance, and fixing common problems. I'll focus on the two most popular models: the CG618B blade grinder and the CG835B conical burr grinder, since those are the ones I see the most questions about.

Shardor Blade Grinder (CG618B): Getting Started

The CG618B is a basic blade grinder with two stainless steel grinding chambers (one for coffee, one for spices). It's simple to operate, but there are a few things worth knowing that the manual doesn't explain well.

Unboxing and First Use

Take everything out of the box and remove any plastic film from the chambers and lid. Give both chambers a quick wipe with a dry cloth. I recommend running a small batch of cheap beans through each chamber before using it for real coffee, just to flush any manufacturing residue.

How to Grind

  1. Choose the correct chamber (the coffee one or the spice one)
  2. Add beans, no more than 3/4 full
  3. Attach the lid by aligning the arrows and pressing down
  4. Press the power button on the front of the base
  5. Pulse in 2-3 second bursts rather than holding the button down

The key mistake people make with this grinder is holding the button down continuously. That creates dust at the bottom and leaves chunks on top. Pulse 2 seconds on, release, shake gently, pulse again. For a medium drip grind, about 12-15 pulses gets you there.

Grind Size Guide

The manual lists vague grind times, but here's what I've found works in practice:

  • Coarse (French press): 5-8 pulses of 2 seconds each
  • Medium (drip/pour-over): 12-15 pulses with shaking between
  • Fine (Moka pot): 20+ pulses, but expect inconsistency
  • Spices: 10-15 pulses for most whole spices

Remember to use the separate spice chamber for spices, not the coffee one. Spice oils are persistent and will flavor your coffee for weeks if you mix chambers.

Shardor Conical Burr Grinder (CG835B): Setup and Use

The CG835B is a step up from the blade model. It uses conical burrs with multiple grind settings and produces a much more consistent grind. At around $40-50, it's one of the cheapest burr grinders available.

Initial Assembly

  1. Place the base unit on a flat surface
  2. The hopper (bean container) sits on top and twists to lock. Align the arrow on the hopper with the unlock symbol, place it down, and twist clockwise until it clicks at the lock position
  3. The grounds container slides in from the front

Adjusting Grind Size

The grind adjustment is controlled by twisting the hopper. There are numbered positions (typically 1-18 or similar range, depending on the specific model). Lower numbers are finer, higher numbers are coarser.

Here's what I've found for each range:

  • 1-5: Fine grind, suitable for Moka pot. Not fine enough for true espresso.
  • 6-10: Medium grind, works well for drip coffee and pour-over
  • 11-15: Medium-coarse, good for Chemex or Clever Dripper
  • 16-18: Coarse, suitable for French press and cold brew

Important: Only adjust the grind size while the grinder is running. Turning the hopper while the burrs are stationary with beans loaded can jam the mechanism. The manual mentions this briefly, but a lot of people miss it and think their grinder is broken when it's actually just jammed.

Setting the Dose

The cup selector on the front (typically 2-12 cups) controls how long the grinder runs. More cups means more grinding time. I suggest starting with a lower setting and weighing the output until you learn how much your preferred setting produces. A kitchen scale is your best friend here.

If you're looking at upgrading from the Shardor to a higher-quality burr grinder, our best manual coffee grinder roundup covers hand grinders that outperform many electric grinders at similar price points.

Cleaning Your Shardor Grinder

Regular cleaning is important for any grinder, and the Shardor models need it more than premium grinders because the materials tend to accumulate oils faster.

Blade Grinder Cleaning

After each use: - Unplug the grinder - Remove the chamber from the base - Tap it upside down to remove loose grounds - Wipe the blade and interior with a dry cloth or brush

Weekly: - Grind a piece of torn white bread in the chamber to absorb oils - Wipe the interior with a slightly damp cloth, then dry thoroughly - Clean the lid with warm water and dish soap

Never submerge the base unit or the chamber with the blade attached. The motor and blade connection are not waterproof.

Burr Grinder Cleaning

After each use: - Remove the grounds container and empty it - Brush loose grounds from the chute opening with a small brush (an old paintbrush works perfectly)

Every 2 weeks: - Remove the hopper by twisting to the unlock position and lifting - Remove the upper burr by pulling it straight up (it should lift out easily) - Brush the upper and lower burrs with a stiff dry brush to remove compacted grounds and oil - Clean the hopper with warm soapy water, rinse, and dry completely before reassembling - Wipe the grounds container and chute with a dry cloth

Never use water on the burrs themselves. Water causes rust and degrades the cutting surfaces.

Dealing with Stale Coffee Taste

If your coffee suddenly tastes bitter or flat even with fresh beans, stale oil buildup is usually the problem. For the blade grinder, the bread trick fixes it. For the burr grinder, a thorough burr cleaning with a stiff brush should resolve it. If the taste persists, consider running grinder cleaning tablets (like Urnex Grindz) through the burr model following the package directions.

Troubleshooting Common Problems

Here are the issues I've encountered and seen others report online, along with actual fixes.

Grinder Won't Turn On

  • Check that the lid is properly aligned and locked. Both Shardor models have safety interlocks that prevent operation if the lid isn't seated correctly.
  • Make sure the outlet works by testing with another device
  • For the burr model, confirm the hopper is twisted to the locked position. It won't run in the unlocked position.

Burr Grinder Jams

This happens when you adjust the grind size while the grinder is off with beans in the hopper. Here's how to fix it:

  1. Unplug the grinder
  2. Remove the hopper (twist to unlock)
  3. Remove the upper burr
  4. Clear any jammed beans from the burr cavity with a spoon or brush
  5. Reassemble and try again, but this time adjust the grind size while the motor is running

Grounds Are Inconsistent (Burr Model)

If the burr grinder is producing an uneven grind, the upper burr might not be seated properly. Remove it, check for debris between the burr and its housing, and reinsert it firmly. Also check that you haven't accidentally moved the grind setting between uses.

Loud Grinding or Unusual Noise

Some rattling is normal on the Shardor burr grinder, especially at coarser settings where the burrs have more space between them. If you hear metal-on-metal scraping, stop immediately, unplug, and check for a foreign object (like a small stone that was mixed in with the beans). Unroasted coffee sometimes contains small pebbles that can damage burrs.

For a comparison of grinders that are built with tighter tolerances, our best manual grinder picks include options starting around $50 that offer a big consistency upgrade.

FAQ

Is the Shardor burr grinder good enough for espresso?

Not really. The finest settings produce a grind that's close to Moka pot fineness but not the very fine, powder-like consistency that true espresso requires. For espresso, you need a grinder with more precise adjustment in the fine range. The Shardor works well for drip, pour-over, French press, and cold brew.

How long do Shardor burrs last?

With daily use, expect 1-2 years before grind quality noticeably degrades. The burrs on the CG835B are not replaceable separately, so when they wear out, you're looking at replacing the entire grinder. At its price point, that's reasonable.

Can I grind spices in the Shardor burr grinder?

No. Only use the burr grinder for coffee. Spice oils will contaminate the burrs and flavor your coffee for a long time. Use the blade grinder's dedicated spice chamber for spices, or buy a separate spice grinder.

Where can I find the Shardor grinder manual online?

Shardor doesn't maintain a great online manual archive. Your best bet is to check the Amazon listing for your specific model, where the manual is sometimes included as a downloadable PDF in the product images or description. You can also contact Shardor's customer service through Amazon for a replacement manual.

Making the Most of Your Shardor

The Shardor grinders punch above their price for everyday brewing. The blade model is a solid $15-20 entry into fresh grinding, and the burr model at $40-50 is one of the cheapest ways to get consistent grinds for drip and French press. Keep the burrs clean, adjust grind size only while running, and don't ask it to do espresso. Within those boundaries, it's a reliable daily grinder that makes noticeably better coffee than buying pre-ground.