I Tried Affresh Dishwasher Cleaner Monthly for 6 Months: Is It Worth It?

Hi there, I’m Drew Callahan. Having traveled over 80,000 miles across North America in three different rigs, I’ve had my fair share of appliance repairs. From fixing dryers and washers to tackling fridges and ice makers, I’ve worked on appliances in all kinds of climates — from humid campgrounds to chilly garages. So, when I opened my dishwasher six months ago and was greeted by a smell reminiscent of “wet dog mixed with old food,” I knew I had to take action. My dishes may have come out clean, but the machine itself was another story. That unpleasant moment kicked off a journey of research and testing, leading me to try out the Affresh dishwasher cleaner tablets consistently over six months before sharing my insights.

My trusty Bosch dishwasher, which I’ve had for about three years, was never cleaned intentionally until that moment of realization. I assumed it cleaned itself while washing my dishes. As it turns out, that assumption was incorrect. Grease, limescale, and food residue were accumulating inside the pump, hoses, and tub, with that smell being just the tip of the iceberg.

Determined to find a lasting solution, I picked up the Affresh Dishwasher Cleaner, Helps Power Away Odor Causing Bacteria, Limescale, Mineral Deposits & Grime Inside Pump, Tub & Hoses, 6 Tablets, 6 Month Supply and used it exactly as directed — one tablet per month — for six months straight. Here’s what I discovered along the way.

Why I Chose Affresh Over Other Dishwasher Cleaners

Before I made my purchase, I dedicated about an hour to reading appliance forums and sifting through YouTube comments. I came across several options: generic dishwasher cleaning pods, DIY methods using white vinegar and baking soda, and a few brand-name tablets. Affresh was frequently mentioned, especially in conversations revolving around Bosch and Whirlpool appliances.

Two factors leaned me towards Affresh. First, it’s recommended by several major appliance manufacturers, including Whirlpool. That’s significant — manufacturers don’t endorse third-party products lightly. Second, their ingredient approach intrigued me. Instead of relying solely on bleach, which can damage rubber seals over time, Affresh employs a surfactant-based formula that effectively breaks down grease and mineral buildup without harming internal components.

I did consider the DIY vinegar method, but after learning that high concentrations of vinegar could degrade rubber gaskets over time, I opted against using it regularly. A purpose-built cleaner felt like the smarter long-term choice for an appliance I depend on daily.

First Impressions: Unboxing and Build Quality

The packaging is simple and straightforward. Inside the box, I found six individually wrapped tablets, each sealed in a dissolvable, plastic-free wrapper. The tablets felt solid and dense — not flimsy or crumbly. They’re about the size of a large vitamin tablet, maybe slightly larger.

I appreciated the clear instructions printed right on the box. No need to hunt through folded inserts or squint at tiny print. The directions were simple: empty the dishwasher, place one tablet in the bottom of the tub (not in the detergent dispenser), and run a normal hot water cycle. That’s it.

My initial impression was cautiously optimistic. The product seemed serious about its job, but I reminded myself that many products look good but deliver little. I wasn’t going to celebrate until I saw actual results.

My Testing Protocol: Six Months, One Tablet at a Time

I kept my approach consistent throughout the testing period. On the first of each month, I ran a dedicated cleaning cycle using the Affresh tablet. No dishes inside — just the tablet and hot water. I utilized my Bosch’s “Auto” cycle, which runs at a higher temperature than the quick wash setting.

During the cleaning cycles, I maintained my normal dishwasher habits. This included daily loading, using a standard detergent pod, and occasionally wiping down the door seal. I didn’t change my detergent brand or water softener settings during this time. My goal was to isolate the impact of the Affresh tablet as much as possible.

After each cleaning cycle, I noted three key aspects: the smell when I opened the door, the visible cleanliness of the interior walls and spray arms, and how my dishes looked after the next regular wash. Keeping these checkpoints consistent allowed me to track changes objectively.

What the First Month Looked Like

After the very first cycle, I noticed the interior walls were noticeably brighter. The film I had assumed was just the tub’s color was actually a layer of mineral buildup. Seeing it gone after just one wash was genuinely surprising. The smell improved as well, though it didn’t disappear entirely after the first treatment.

What Actually Changed: Honest Results With a Timeline

Here’s a clear breakdown of what I observed month by month:

• Month 1: Visible mineral film on the tub walls reduced significantly. The musty odor dropped from “noticeable every time” to “occasional and faint.”
• Month 2: Spray arm holes appeared clearer. Dishes started coming out with fewer water spots, which I hadn’t expected from a machine cleaner.
• Month 3: The interior smelled neutral after cycles. No more damp, lingering odor when opening the door. This was my biggest quality-of-life improvement.
• Month 4: The results felt stable. No major new improvements, but no regression either. The machine stayed consistently cleaner between treatments.
• Month 5: The rubber door gasket looked cleaner, with less visible grime in the folds. I had been manually wiping it before, but the tablet cycles seemed to help maintain it.
• Month 6: The interior of my dishwasher looked genuinely better than it had in years. Comparing photos from before the first treatment to now, the difference is remarkable.

I want to be clear about one point: around month three, I almost stopped. The improvements had plateaued, and I wondered if I was just paying for a monthly ritual that no longer yielded significant benefits. However, I pushed through — and I’m glad I did. Months four through six showed me that the real value lies in maintenance, not just the initial clean. Consistent use helped prevent buildup from returning, which is ultimately the goal.

Did It Actually Improve My Dish Results?

To some extent, yes. Cleaner spray arms and a cleaner pump do seem to correlate with better water distribution during wash cycles. My glasses came out with fewer spots and streaks after month two. However, I can’t attribute that entirely to Affresh, as I also switched to a rinse aid around the same time. So, take that observation with a grain of salt.

The Downsides: What Affresh Does Not Do

No product deserves a dishonest review, so here are the genuine limitations I found during my six months of testing.

First, it doesn’t replace manual cleaning. The filter at the bottom of my dishwasher still needed to be removed and rinsed by hand monthly. Affresh targets limescale, mineral deposits, and odor-causing residue but does not dissolve trapped food particles. If your filter is clogged, a tablet won’t fix that.

Second, the initial results aren’t instant if your machine has been severely neglected. My dishwasher had years of buildup inside it. One tablet made a visible difference, but it took two to three months before I felt the machine was truly clean. Someone expecting a single-use miracle might be disappointed.

Third, the cost adds up. At roughly $10 to $12 for a six-tablet box, you’re spending around $20 to $24 per year on cleaner cycles alone. That’s not a huge amount, but it’s worth considering if you’re watching your budget.

Finally, I noticed the tablet wrapper sometimes didn’t fully dissolve during shorter cycles. Always run a full, hot cycle to ensure complete dissolution and maximum effectiveness.

Final Verdict: My Affresh Dishwasher Cleaner Tablets Review After 6 Months

After six months of consistent monthly use, I can confidently say that the Affresh Dishwasher Cleaner, Helps Power Away Odor Causing Bacteria, Limescale, Mineral Deposits & Grime Inside Pump, Tub & Hoses, 6 Tablets, 6 Month Supply does exactly what it claims. The odors are gone, the interior is visibly cleaner, and the machine operates with what feels like better water pressure through the spray arms. Those are real, observable improvements — not just marketing fluff.

The Monthly Cleaner That Actually Stops Dishwasher Odor Before It Starts

If your dishwasher is developing a funky smell between cycles, running a cleaning tablet monthly can catch buildup before it becomes a real issue—far easier than trying to fight accumulated grime later. This is the one product I’ve found that genuinely addresses odor-causing bacteria, rather than just covering up the smell.

What works

• The tablet dissolves completely during a hot wash cycle, reaching the pump, spray arms, and hose areas where food particles and bacterial buildup hide—I noticed fresher-smelling interior walls within the first two uses.
• Mineral and limescale deposits break down noticeably after consistent monthly use, which improves water flow and prevents that hard-water film from accumulating on dishes over time.
• The dosing is straightforward—one tablet per month, with no measuring or guessing—making it a sustainable maintenance habit rather than something you forget about after a couple of tries.

What doesn’t

• If your dishwasher already has heavy, caked-on buildup or severe odor, a single tablet won’t deep-clean it fast enough—you may need two consecutive runs or a stronger descaling product first to tackle months of accumulated grime.
• The 6-month supply means you’re committing to a regular schedule; skip months and you’ll lose the preventative benefit, and the tablets won’t resolve an already-damaged pump or blocked spray arm on their own.

The main lesson I learned early on was that expecting one cleaning tablet to rescue a machine that had gone six months without maintenance was unrealistic — it took me two back-to-back cycles to completely eliminate the smell. This experience reinforced the idea that prevention truly beats cure. Once I committed to the monthly routine, the odor never returned. If you’re looking for a reliable solution, I highly recommend the Affresh Dishwasher Cleaner, Helps Power Away Odor Causing Bacteria, Limescale, Mineral Deposits & Grime Inside Pump, Tub & Hoses, 6 Tablets, 6 Month Supply.

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