ABSTRACT This study aims to determine the frequency of washing on the sensory value of pempek mackerel sand (Scomberomorus guttatus) produced. This research was carried out in the laboratory of the Faculty of Agriculture, Palembang Muhammadiyah University and the Palembang Industrial Research and Standardization Center from May 2018 to August 2018.This study used an experimental method that uses a non factorial randomized block design. The washing frequency had very significant effect on protein content, fat content and a water content of pempek lenjer mackerel sand. The lowest protein content and fat content and the highest water content were found in F4 treatment (washing four times) with an average value of 8.46%, 0.38% and 58.08% respectively. The washing frequency had significant effect on elasticity by folding test and had very significant effect on the elasticity of pempek lenjer sand mackerel by bite test. The elasticity with the highest folding test is found in F4 treatment (washing four times) with an average value of 9.00 (the criteria do not crack when folded 4) and the highest elasticity with the bite test found in the F4 treatment (washing four times) with an average value 9.00 (very strong criteria of elasticity). The frequency of washing significantly affect the color of pempek lenjer mackerel sand. The highest level of preference for the color of pempek lenjer sand mackerel fish is found in F4 treatment (washing four times) which results in a clean white color on the pempek produced with an average value of 4.40 (criteria preferred by panelists). The frequency of washing significant effect on color, taste and aroma of pempek lenjer mackerel sand. The highest level of preference for color, taste and aroma of pempek lenjer mackerel sand was found in F4 treatment (washing four times) with an average value of 4.40, 4 05 and 4.60 with the criteria like or dislike by panelists.ABSTRAK Penelitian ini bertujuan untuk mengetahui mengetahui frekuensi pencucian terhadap nilai sensoris pempek ikan tenggiri pasir (Scomberomorus guttatus) yang dihasilkan. Penelitian ini dilaksanakan di laboratorium Fakultas Pertanian Universitas Muhammadiyah Palembang dan Balai Riset dan Standarisasi Industri Palembang pada bulan bulan Mei 2018 hingga bulan Agustus 2018. Penelitian ini menggunakan metode eksperimen yang menggunakan Rancangan Acak Kelompok Non Faktorial. Frekuensi pencucian berpengaruh sangat nyata terhadap kadar protein, kadar lemak dan kadar air pempek lenjer ikan tenggiri pasir. Kadar protein dan kadar lemak terendah terdapat pada perlakuan F4 (pencucian empat kali) dengan nilai rata-rata 8,46%, 0,38%, kadar air tertinggi pada F4 dengan nilai rata-rata 58.8% . Frekuensi pencucian berpengaruh nyata terhadap kekenyalan dengan uji lipat dan berpengaruh sangat nyata terhadap kekenyalan pempek lenjer ikan tenggiri pasir dengan uji gigit. Kekenyalan dengan uji lipat tertinggi terdapat pada perlakuan F4 (pencucian empat kali) dengan nilai rata-rata 9,00 (kriteria tidak retak bila dilipat 4) dan kekenyalan tertinggi dengan uji gigit terdapat pada perlakuan F4 (pencucian empat kali) dengan nilai rata-rata 9,00 (kriteria sangat kuat kekenyalannya). Frekuensi pencucian berpengaruh nyata terhadap warna pempek lenjer ikan tenggiri pasir. Nilai tingkat kesukaan tertinggi terhadap warna pempek lenjer ikan tenggiri pasir terdapat pada perlakuan F4 (pencucian empat kali) yang menghasilkan warna putih bersih pada pempek yang dihasilkan dengan nilai rata-rata 4,40 (kriteria disukai panelis). Frekuensi pencucian berpengaruh nyata terhadap warna, rasa dan aroma pempek lenjer ikan tenggiri pasir.Nilai tingkat kesukaan tertinggi terhadap warna, rasa dan aroma pempek lenjer ikan tenggiri pasir terdapat pada perlakuan F4 (pencucian empat kali) dengan nilai rata-rata 4,40, 4,05dan 4,60 dengan kriteria disukai panelis.
